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Finding the Fourth Proportional to 583,398.72, 805,017.60 and 325,212.30

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Solution

The fourth proportional to 583,398.72, 805,017.60 and 325,212.30 is: 448,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,398.72 : 805,017.60 = 325,212.30 : x
  2. Step 2: Convert to fraction form
    583,398.72/805,017.60 = 325,212.30/x
  3. Step 3: Cross multiply
    583,398.72x = 805,017.60 × 325,212.30
  4. Step 4: Simplify right side
    583,398.72x = 261,801,625,236.48
  5. Step 5: Solve for x
    x = 261,801,625,236.48/583,398.72
  6. Step 6: Final answer
    x = 448,752.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.